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Title Summary Grade Type Views
Straw Bridges

Working as engineering teams, students design and create model beam bridges using plastic drinking straws and tape as their construction materials. Their goal is to build the strongest bridge with a t...
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8 (6-8) Activity 2429
Physics of Roller Coasters

Students explore the physics utilized by engineers in designing today's roller coasters, including potential and kinetic energy, friction, and gravity. First, students learn that all true roller coas...
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7 (7-9) Lesson 1894
Potato Power

Students use potatoes to light an LED clock (or light bulb) as they learn how a battery works in a simple circuit and how chemical energy changes to electrical energy. As they learn more about electri...
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4 (3-5) Activity 1853
Building Roller Coasters

Students build their own roller coasters using pipe insulation and marbles, and then analyze them using principles of physics. They examine conversions between kinetic and potential energy and fricti...
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7 (7-9) Activity 1443
Engineering: Simple Machines

Simple machines are devices with few or no moving parts that make work easier. Students are introduced to the six types of simple machines — the wedge, wheel and axle, lever, inclined plane, screw, ...
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4 (3-5) Lesson 1365
Powerful Pulleys

Students continue to explore the story of building a pyramid, learning about the simple machine called a pulley. They learn how a pulley can be used to change the direction of applied forces and move/...
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4 (3-5) Lesson 1196
Designing Bridges

Students learn about the types of possible loads, how to calculate ultimate load combinations, and investigate the different sizes for the beams (girders) and columns (piers) of simple bridge design. ...
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8 (6-8) Lesson 1122
Earthquake in the Classroom

Students will learn how engineers construct buildings to withstand damage from earthquakes by building their own structure with toothpicks and marshmallows. Students will test how earthquake-proof th...
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5 (3-5) Activity 1109
The Science of Swinging

Students learn what a pendulum is and how it works in the context of amusement park rides. While exploring the physics of pendulums, they are also introduced to Newton's first law of motion — about continuous motion and inertia. 3 (2-4) Lesson 1077
Do Different Colors Absorb Heat Better?

Students test whether the color of a material affects how much heat it absorbs. They leave ice cubes placed in boxes made of colored paper (one box per color; white, yellow, red and black) in the sun,...
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1 (0-2) Activity 1065
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